0.3.x

[demonkillerr]

This release aims to solve some of the housekeeping tasks ahead of 0.4.x. It renames the project to Explorer, modernizes the build, replaces logging, enforces formatting, adds a test suite, and cleans up a couple of real blocking/cancellation bugs. This PR aims to work on #19 and #20 along with other things.

Few of the things this covers is as follows:

• Rename: alg-app-store → Explorer
• Build system modernization
• Versioning
• Logging overhaul
• clang-format enforcement
• Test infrastructure
• std::jthread + non-blocking cooperative cancellation

Find more information below:

Rename application:

This is the project wide effort to rename applications after HPC clusters.

• Repo, binary target, and all source/doc references renamed throughout (CMakeLists.txt, main.cpp, mainwindow.cpp, assets/*.desktop/.png, README.md, CONTRIBUTING.md, build.sh, .gitignore, CI workflow)
• Fixed two pre-existing CI bugs found while touching release.yml: the version-extraction step still grepped CMakeLists.txt for a version string that no longer lived there, and the release-trigger check watched the wrong file. Both now correctly read/watch the VERSION file
• Added a missing install() rule for explorer.png so the desktop file's Icon= actually resolves post-install

Build system modernization

• Bumped to C++20
• Split the monolithic CMakeLists.txt into granular per-folder libraries: core, gui, utils
• Fixed a regression this surfaced: moving resources.qrc into thestatic gui library silently broke QSS loading at runtime (linker drops a static lib's unreferenced resource initializer). Fixed with Q_INIT_RESOURCE(resources) in main.cpp

Versioning

• Eliminated the hardcoded version string in the About dialog — src/utils/version.h.in is now configure_file() from the root VERSION file (the project's single source of truth) into a generated version.h

Logging overhaul

• Replaced the old qDebug-based Logger:: wrapper with spdlog
• Added -v/-vv/-D CLI verbosity flags, parsed and stripped from argv before QApplication construction
• Established a safety pattern for dynamic log messages: always passed as a format argument (spdlog::info("{}", msg)), never as the format string itself, so arbitrary content (pacman/AUR output, JSON) containing {/} can't be misparsed as a fmt placeholder

clang-format enforcement

• Finalized .clang-format (WebKit-based, Allman braces, C++20), one isolated repo-wide reformat commit across entire code base
• New CI format job gates PRs on clang-format --dry-run --Werror

Test infrastructure

• Catch2 (v3) + CTest, scoped deliberately to pure logic only. AlpmWrapper/PackageManager still touch real libalpm/pkexec, not mocked yet (full mock backend deferred to 0.5.x)
• Extracted three previously inline pieces of logic into testable free functions/statics in core: AurHelper::parseAurPackage (AUR JSON parsing), new PacmanConf::isMultilibEnabled/isChaoticAurEnabled (pacman.conf section parsing, pulled out of SettingsWidget), new parseOperationProgress(pacman/yay/paru output parsing, pulled out of PackageDetailsDialog)

std::jthread + non blocking cooperative cancellation

• AurHelper::checkAurUpdates() now takes a std::stop_token, checked both between packages and against an in-flight AUR RPC request (via std::stop_callback aborting the pending reply). The AUR RPC has no client-side timeout, so this matters
• UpdatesWidget runs the update check on a std::jthread member instead of QtConcurrent::run, so a repeat click or widget teardown cancels an in-progress check instead of leaving it orphaned. Verified live (not just reviewed): completed a check successfully headless, and separately quit mid-check and confirmed shutdown completed in ~1.2s instead of hanging on the network call
• PackageManager::cancelRunningOperation() : the pkexec pkill calls that actually kills the privileged pacman/yay/paru process (as opposed to just the local wrapper) now runs on a background std::jthread overlapping with the existing wait instead of blocking the GUI thread in front of it, cutting worst-case cancel latency roughly in half